Stove.



B. F. BERKHEIMER.

STOVE.

APPLICATION FILED 58.15. 19:5.

1 ,200,577. Patented Oct. 10, 1916.

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BENJAMIN F. BERKHEIMER, OF GREENVILLE, OHIO.

STOVE.

Specification of Letters Patent.

Patented Oct. 10, 1916.

Application filed February 15, 1915` Serial No. 8,277

T 0 all whom t may concern.'

Be it known that I, BENJAMIN F. BERK- HEIMER, a citizen of the United States, re siding at Greenville, in the county of Darke, State of Ohio, have invented certain new and useful Improvements in Stoves, of which the following is a description, reference being had to the accompanying drawings, form a part hereof.

My invention relates to improvements in stoves and other heating apparatus and has for its object to provide in connection with the iire pot of a stove or other heating apparatus, an improved means for heating air and discharging it from above onto the fuel to aid in its perfect combustion, thus reducing the amount of unconsumed carbon which usually passes off as smoke or soot, and to prevent ashes from escaping from the ashpit when the re is shaken down.

With these objects in view, my invention consists in the construction and combination of elements hereinafter described and claimed.

Referring to the drawings, Figure 1 is a central vertical sectional view of a stove having my invention applied thereto. Fig. 2 is a horizontal sectional view on the plane of line 2-2, of Fig. 1. Fig. 3 is a perspective view of the baiiie plate. Fig. 4 is a perspective view of the air tube, and Fig. 5 is a horizontal sectional view of a fire box having a modilied'form of air tube.

In the drawings, 1 indicates the base of a stove of ordinary construction having formed therein the ashpit 2 with door 3 provided with the usual openings regulated by slide 4, and having within it the ash pan 5, and supported on legs 6. The top of this base is provided with a central opening over which sits the fire pot 8, here shown as of increasing diameter from its bottom up- 4 ward. In the bottom end of the fire pot is arranged a grate 9. At the top of the fire pot and extending about half way over it from the rear is a baiiie plate 10, preferably arched, as shown, and provided at about the middle of its forward edge with an eye 11. On the upper end of the lire box is arranged a ring 12 forming an upper fire pit or iiame chamber, the lower end of which corresponds to and fits in vthe open upper end ofthe lire box. On the upper end of this ring 12 is the stove top 13 provided with the usual openings having removable covers and having an opening 15 for the smoke pipe 16. y

The top of the base 1 is provided at the rear of the opening 7 with a small opening 17 and the ring 12 is provided near its lower edgein line with opening 17 with a small opening 18. Into the small opening 17 extends the lower end of an air tube 19 which extends upward along and close to the exterior of the iire pot and through the opening 18, at which point it is curved forward to follow the curve of the baiiie plate 10 and at its forward end is then bent downward with its downwardly bent end extending through the eye 11 so that its is at about the center of the fire pot. The lower open end of the air tube 19 is directly above the rear of the ash pan 5. Instead of forming the air tube, as shown in Figs. 1, 2 and 4, it may be trough-shaped in cross section, as shown in Fig. 5, and secured to the wall of the re box and to the upper face of the baiiie plate so that the wall of the fire box and the baffle plate each forms a part of the air tube. In operation as soon as the fuel in the fire box begins to burn, it heats the baffle plate and the wall of the fire box heats the air tube. The slide in the door of the ashpit beingv opened, air is supopen end` plied to the fuel through the grate and air v ed as it rises and is finally discharged as a hot blast through the upper end of the tube onto the top of the burning fuel where it supplies oxygen to promote and perfect combustion of the carbon carrying gases driven 0E by the heat of the fire, so that the chamber above the iire pot will be filled with flame withoutl smoke. The baliie plate serves to throw the heat forward so as to distribute it evenly to the stove top, and it also serves to highly heat the air tube and further serves in connection with the air tube discharging at its forward edge to form a chamber in which the hot air and the products of combustion will mix together more thoroughly than would be the case without it. The heating of the air tube by contact with the wall of the fire pot and the baiiie plate creates an upward draft through it which is increased by the fact that the air tube is heated most strongly in its upper portion Where it is in contact with the baiie plate. Whenever the slide of the door of the ash pit is moved so as to admit air, this upward draft through the air tube will be Very strong depending, of Course, on the amount of air admitted through the openings in the door. Vhenever the fire is shaken down, any fine ashes which might otherwise escape into the room will, by the strong upward draft through the air tube, be drawn upward and discharged onto the top of the fire, and if they escape at all, they will be drawn up the smoke pipe. It will be noted that the slide in the door of the ashpit serves as the single regulating means for admission of air to the fuel through the grate and for admission of air to the air tube. Fuel may be supplied to the fire box through a fuel door 20 formed in the ring l2 at the front of the stove or may be supplied through the openings in the top of the stove.

Copies of this patent may be obtained for ve cents each, by addressing the Having thus described my what I claim is In an inelosed heating apparatus, the combination of a fire pot, an ash pit beneath the fire pot, means for regulating the admission of air to the ash pit, a baffle plate disposed upon the top of the fire pot and eX- tending forward from the rear thereof, and an air tube leading from the ash pit upward in Contact with the wall of the fire pot and forward over the top of the baiiie plate in Contact therewith and arrangedto discharge air downward upon the fuel at the forward edge of the baffle plate.

This specification signed and witnessed this 8 day of Feb., A. D. 1915.

BENJ. F. BERKHEIMER.

In the presence of- J. M. BICKEL, MARION, MURPHY.

invention,

"Commissioner of Patents,

Washington, D. C. 

